Add check for max password age not set in IAM password policy control closes #965

[misraved]

Checklist

• Issue(s) linked

[Copilot]

Pull request overview

This PR adds a check for when the maximum password age is not set in the IAM password policy control. The change enhances the feedback provided by the iam_account_password_policy_strong_min_reuse_24 query.

Changes:

• Added a NULL check for max_password_age in the IAM password policy reason message to explicitly indicate when max password age is not configured

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.